src/third_party/WebKit/Source/bindings/core/v8/custom/V8WorkerGlobalScopeCustom.cpp

   1 /*
   2  * Copyright (C) 2009 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "config.h"
  32 #include "bindings/core/v8/V8WorkerGlobalScope.h"
  33
  34 #include "bindings/core/v8/ExceptionState.h"
  35 #include "bindings/core/v8/ScheduledAction.h"
  36 #include "bindings/core/v8/V8Binding.h"
  37 #include "bindings/core/v8/V8WorkerGlobalScopeEventListener.h"
  38 #include "bindings/core/v8/WorkerScriptController.h"
  39 #include "core/frame/DOMTimer.h"
  40 #include "core/frame/DOMWindowTimers.h"
  41 #include "core/frame/csp/ContentSecurityPolicy.h"
  42 #include "core/inspector/ScriptCallStack.h"
  43 #include "core/workers/WorkerGlobalScope.h"
  44 #include "wtf/OwnPtr.h"
  45
  46 namespace blink {
  47
  48 static void setTimeoutOrInterval(const v8::FunctionCallbackInfo<v8::Value>& info, bool singleShot)
  49 {
  50     WorkerGlobalScope* workerGlobalScope = V8WorkerGlobalScope::toImpl(info.Holder());
  51     ASSERT(workerGlobalScope);
  52
  53     int argumentCount = info.Length();
  54     if (argumentCount < 1)
  55         return;
  56
  57     v8::Handle<v8::Value> function = info[0];
  58
  59     WorkerScriptController* script = workerGlobalScope->script();
  60     if (!script)
  61         return;
  62
  63     ScriptState* scriptState = ScriptState::current(info.GetIsolate());
  64     OwnPtr<ScheduledAction> action;
  65     if (function->IsString()) {
  66         if (ContentSecurityPolicy* policy = workerGlobalScope->contentSecurityPolicy()) {
  67             if (!policy->allowEval()) {
  68                 v8SetReturnValue(info, 0);
  69                 return;
  70             }
  71         }
  72         action = adoptPtr(new ScheduledAction(scriptState, toCoreString(function.As<v8::String>()), KURL(), info.GetIsolate()));
  73     } else if (function->IsFunction()) {
  74         size_t paramCount = argumentCount >= 2 ? argumentCount - 2 : 0;
  75         OwnPtr<v8::Local<v8::Value>[]> params;
  76         if (paramCount > 0) {
  77             params = adoptArrayPtr(new v8::Local<v8::Value>[paramCount]);
  78             for (size_t i = 0; i < paramCount; ++i)
  79                 params[i] = info[i+2];
  80         }
  81         // ScheduledAction takes ownership of actual params and releases them in its destructor.
  82         action = adoptPtr(new ScheduledAction(scriptState, v8::Handle<v8::Function>::Cast(function), paramCount, params.get(), info.GetIsolate()));
  83     } else {
  84         return;
  85     }
  86
  87     int32_t timeout = argumentCount >= 2 ? info[1]->Int32Value() : 0;
  88     int timerId;
  89     if (singleShot)
  90         timerId = DOMWindowTimers::setTimeout(*workerGlobalScope, action.release(), timeout);
  91     else
  92         timerId = DOMWindowTimers::setInterval(*workerGlobalScope, action.release(), timeout);
  93
  94     v8SetReturnValue(info, timerId);
  95 }
  96
  97 void V8WorkerGlobalScope::setTimeoutMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  98 {
  99     return setTimeoutOrInterval(info, true);
 100 }
 101
 102 void V8WorkerGlobalScope::setIntervalMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 103 {
 104     return setTimeoutOrInterval(info, false);
 105 }
 106
 107 v8::Handle<v8::Value> toV8(WorkerGlobalScope* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 108 {
 109     // Notice that we explicitly ignore creationContext because the WorkerGlobalScope is its own creationContext.
 110
 111     if (!impl)
 112         return v8::Null(isolate);
 113
 114     WorkerScriptController* script = impl->script();
 115     if (!script)
 116         return v8::Null(isolate);
 117
 118     v8::Handle<v8::Object> global = script->context()->Global();
 119     ASSERT(!global.IsEmpty());
 120     return global;
 121 }
 122
 123 } // namespace blink